Looks for credentials in this order: Env Vars - AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY Java System Properties - aws.accessKeyId and aws.secretKey Web Identity Token credentials from the environment or container Credential profiles file at the default location (~/.aws/credentials) Credentials delivered through the Amazon EC2 container service if AWS_CONTAINER_CREDENTIALS_RELATIVE_URI" environment variable is set and security manager has permission to access the variable, Instance profile credentials delivered through the Amazon EC2 metadata service more: